10mL cod digestion vials with flat bottom for measuring water quality
Amazon.com: small glass vials
10ml Clear Glass Vials-Clear Glass Headspace Vials with Plastic-Aluminum Flip Off Caps and Rubber Stoppers, 100 Pack, 20mm Flat Bottom Lab Vial (Clear) 4.7 out of 5 stars 140 $27.95 $ 27 .
Cod Vial at Thomas Scientific
COD Vials High Range 0-1500mg/L. WTW. Dichromate reactor digestion reagents for fast, easy, safe determination of low-, mid-, and high-range C.O.D. levels in wastewater. Premeasured reagent is packaged in flat-bottom ampules that are compatible wi...